[petsc-users] Eigenvalue solver method in Petsc

[Satish Balay]

On Sun, 17 Mar 2013, Barry Smith wrote:

> 
> On Mar 17, 2013, at 5:42 PM, Satish Balay <balay at mcs.anl.gov> wrote:
> 
> > On Sun, 17 Mar 2013, Barry Smith wrote:
> > 
> >> 
> >> On Mar 17, 2013, at 5:37 PM, Satish Balay <balay at mcs.anl.gov> wrote:
> >> 
> >>> On Sun, 17 Mar 2013, Barry Smith wrote:
> >>> 
> >>>> 
> >>>> On Mar 17, 2013, at 3:51 PM, Satish Balay <balay at mcs.anl.gov> wrote:
> >>>> 
> >>>>> On Sun, 17 Mar 2013, Sonya Blade wrote:
> >>>>> 
> >>>>>>>>> Cygwin is required to build PETSc, but not to use it.
> >>>>>>>> How about the MSys interface, which I've already installed.
> >>>>>>> 
> >>>>>>> Not currently, as far as I know.
> >>>>>> 
> >>>>>>> whats your compiler requirement? And why?
> >>>>>> I use gfortran which ships with MinGW and with Msys I feel more
> >>>>>> comfortable.
> >>>>> 
> >>>>> Are you looking at sequential use of PETSc - or parallel? I see mpich
> >>>>> doesn't work with msys/mingw.
> >>>> 
> >>>>  And why not.
> >>> 
> >>> Sorry - forgot to post this link.
> >>> http://lists.mcs.anl.gov/pipermail/mpich-discuss/2010-July/007458.html
> >>> 
> >>>> It is far more natural than cygwin.
> >>> 
> >>> How so? Even python [which is now considered a universal requirement?] doesn't compile on it.
> >> 
> >>  Why compile python? Windows already has a perfectly good python to use.
> > 
> > Our build tools don't work with MS paths.
> 
>    Buildsystem does,

since when? And even if it were to work - whats the point of using it
[with MS paths] with mingw-gcc/gfortran?

Its not like 'msys' is more userfriendly wrt install/use to Windows
users [with no unix knowledge] as compared to cygwin.

> as does cmake. Which ones don't work?

Only after cygwin run of buildsystem - and hacking the cmake stuff produced by it.

Satish

> 
>   Barry
> 
> > 
> > Satish
> > 
> >> 
> >>> 
> >>> Satish
> >>> 
> >>>> 
> >>>>> 
> >>>>> You can try an install of petsc with msys - and see if it works. If not send
> >>>>> us logs at petsc-maint.
> >>>>> 
> >>>>> [its possible things won't work - and you would have to use
> >>>>> cygwin/gfortran. Presumably it shouldn't conflict with your msys
> >>>>> install]
> >>>>> 
> >>>>> Satish
> >>>> 
> >>>> 
> >>> 
> >> 
> >> 
> > 
> 
>